Ring-rolling machine



Feb. 12 1924.

' G. G. BROWNE RING 30mm: mcnma Filed June 22, '1921 2 Shuts-Sheet 1 I I 7', A? '3 A i 5 on a a a g A a- 2 "g 3? f f U /K Feb. 12 1924. 1,483,069

G. G. BROWNE RIM} ROLLING MACHINE Filed June 22. 1921 2 Sheets-Sheet z .oroth'er motor 2 whose shaft 3 is Patented Feb. 12, 1924.

UNITED STATES PATENT OFFICE.

RING-ROLLING MACHINE.

Application filed June 22, 1921.

To all whom it may concern:

Be it known that I, Goovrmvnnn G. BRowNE, a citizen of the United States, and a resident of Winchester, in the county of Cheshire and State of New Hampshire, have invented a new and useful Improvement in Ring-Rolling Machines, of which the following is a specification.

My invention relates to machines for rolling metal rings and has for its principal objects to devise a machine that will roll rings of various sectional shapes. that will roll. rings free from tins and fiashings, that will form rings of the exact size and cross-sectional shape desired and that will produce rings of excellent quality.

The invention consists principally in a ring rolling machine in which one of two cooperating forming rolls is mechanically fed transversely of the other during the rolling operation; it also consists in a ring rolling machine provided with means for adjusting the angular relations of the forming rolls to each other; it also consists in a ring rolling machine whose cooperating rolls contact with each other in two planes throughout the rolling operation; and it also consists in the parts and combinations of parts hereinafter described and claimed.

In the drawings, which form part of this specification and wherein like reference numerals indicate like parts wherever they occur,

Fig. 1 is a plan view of a ring rolling machine embodying my invention;

Fig. 2 is an end elevation thereof;

Fig. 3 is a sectional view on the line 3-3 of Fig. 1;

Fig. 4 is a view of forming rolls of a modified design; and

Fig. 5 is a detail view of the plate on which the swivel head that supports one of the forming rolls is mounted.

Mounted on a suitable base 1 is an electric rovided with a pinion 4 at one end'and a evel or other gear 5 at the other end. The pinion 4 meshes with a gear 6 secured on a spindle 7 that is journaled in suitable bearings 8 providedtherefor in a housing 9. The spindle housing 9 is mounted on a carrier or frame 10 that is slidably mounted in ways provided therefor in the frame of the machine or in a suitable guide block on said frame. In order to permit movement of the spindle Serial No. 479,472.

constitute pistons or plungers therefor.

These cylinders 13 or fluid chambers are suitably connected with a source of air or fluid pressure to be actuated thereby. The spindle carrier is moved backward or forward by the pressure of air or other fluid under pressure admitted into .one or theother of said cylinders 13 and thus causing endwise movement of the plunger rod 12 which carries with it 'the i and spindle 7.

spindle housing Mounted on the end of the spindle"? or integral therewith is a mounting plate 14 to which is removably secured a forming roll 15. Preferably the mounting plate is recessed to receive the end of the forming roll 15 and said forming roll is detachably secured to the mounting plate 14 by screws 16 or the like.

Disposed on a slide-way 17 transverse to the axis of the forniingroll spindle 7 is a bed plate 18 on which is mounted a swivel head 19 that is provided with suitable journal bearings 20 for a second spindle 21 on the end of which is removably mounted a forming roll 22 to cooperate with the first forming roll 15. V The bed plate 18 is provided with a downwardly projecting portion having a threaded hole therethrough, through which passes a feed screw 24 that is journaled in the frame of the machine andprojects therei from at one end. The prO ecting end of the feed screw 24. is provided with change speed and reverse gear mechanism 25 that is driven by a. gear :26 on the end of a counterslmft 3,7. This countehshaft 27 has a bevel gear 28 at its other end that meshes with the bevel gear 5 on the end of the motor shaft 3. As the feed screw 24 and theforming roll 15 are driven from thesameinotor, the ratio between the feed of the; screw and the veloc ity of rotation of the roll is constant for any particular setting of the change speed gear mechanism. 1

In the upper surface of the bed plate 18 V is an undercut annular channel 29 into which extend the beveled heads of bolts '30 or the like that pass throughholes provided there for in the base portion of the swivel head 19. The swivel head 19 centereden-ean gupstandin eiieiiliir prtig'ectioh #1 iii the bed plate 18 that fits in an opening in the base portion of the swivel head. The swivel head 19 is secured in position by drawing up the bolts 30 tight against the sides efthe annular channel; and by loosening said bolts 30, the swivel head 19 may be rotated on said centering projection to any desired position. The annnlar ehannelQS is provided with enlaigeii epenings s2, selresieoniling to the number of securing bolts 30 and the swivel head-ma "be liftetl nfi @efrhe bed ste by 1 "tuning it :until the heads efiahe' tilts 30 1' later Wishthe enlarged 82 in s9; 6 ehaimel 29.

eiintamhlymounted en shitztbleprojeotions 33'0l1 theswivel head uhore snd helew the 20 ferfining rel! 22 res iee'tively are suitable nide hells 34 that are adapted to en go the *fi'orkhs it near the end of the rel ing operation. Preferably these projections 33 are srseree and the rblls'i i are seemed were i 25 to ey lcuolt's -35 pessi'n through these shits; andthe position of t e geifrie rells may changed by moving the securing belts in islets.

The iierming' rolls '15 and 22 may be if any suitable "size "and form, depending on the siz and eross seetionfil she'pe hi the ring thatis' tn be produced. I prefer'to have the'rtflls contest in two planes thhtsre parallel to-eeeh ether and to the iiiie fifteen of the transversely movable roll. By this arrangement, the mark is entirely enelosed threughont the rolling operation and the formation of fins or ileshin g's "thereon revented.

40 In thecenstr ietion illustrated in Fig. 4, the eriven *rollfifl isprovided with a recess 51 in which the work rests and the work is rolled between the peripher of said'reeess inthe rail and theseeendilirmin rell 52.

EU; tli'e'begihning of'the'rolling'e mlliomllle oversil difimlier of the work. which is in the fbrin of a'n snnnlar blank (if re'etangnisr or other convenientseutibn) is mush smaller than antenna recess in the ferrsnag r611 end the thieknesserthe work is greater'than thatdehiredfer thefinished ring. inthe rolfi opera'tiom the thiekiiessof the Work is 're heed and the diameter thereof is increseil until it fillsthe'reces's in the iloriningz roll. Bhus, if onlythsnnelarhlsnk is of a 1 utility suitable for i iilliii and has the weight required fon ehe; re ubt, its initial size hndsoti on are sf re aeireiy sneer impenance. w

611 *eperetien of the meehih'e is as 'follows:

illrespimlie 7 is movedifo-rwesd, carrying within the roll :15 and she wes-k is said 11ml. Theftbms scribed feed mechanism.

to engage the work and to Contact with the first roll1 5. The driven firrmi ngroll 15 is mama While the other son 22 ofltinues to be fed forward gradually by the above de- This results in a radual rolling of the Work to the size and shape desired. The feeding of the roll 22 is gradual and in a fixed ratio to the rate of rfitation of the "first roll; and thus only a small amount of work is done at a given time on the stock and thus the finished ring will be of excel lent quality and free from the internal stresses that result from too ra piti operation on the metal in a rollin mill. After the railing is cemglaeted the sea is reversed end the second rming roll is banked away to permit the ring to be removed.

As above described, the swivel head 19 may be turneidso that the forming roll 22 may have any desired angular relation with the driven roll 15. Thus, hi Fig. 1, 'I have shown the two rolls-as being preotiofllly parallel', Whereas in Fi '4,"one1s at any angle of sheet retty-five egrees'eotheother. T he proper set or angle of the swivel head is such that the'lines of eontaet'ef the iorrnln rolls ure parallel with eaeh other and wit theiine efrieed ef the transversely movable roll, so shst the transverse feed of "onerofi will not RELI'ISB any separation ef th'e re s.

My ring reiiing machine is 'weli adapted for rollingrings of any desired :sectienai shape. The forming rolis ney'be modified as desired endthe transversely tnovhble roll may be placed at any desimdengle with the driven roll. The fixed'end regular teed of the transversely movable roll insures a ring of good quality.

It is obvious that numerous changes may be made without departing fromcmy invention and I do not Wish to be limited to the precise construction shown.

What I claim is:

i. A ring rolling-machine GOHliJI'iSiflg :21. air of rotatably mounted formers relhtively 1110 vably longitudinally and transversely mid means for changing angular relation of said formers to each other.

2. In :n ring relling menhine com prisi a pair of retetably mounted cooperating forming rolls. e-"suppnrt for one of fiseid rollsmoveble bodily endwise, and a -swivel head fersuppex ting thebther of sei'drrells @120 ineoeperiitive 'rela'tron te said first reil, said swivel heed. permittinganguhr edjnstmen t of said rcslls relative to eeeh other.

3'. In in 1r znraehixm compriaing a paiir ofrotzetfiilywimted aouperaiii 36miing rolls, s a napport 1 flEOififlH? ef sa 6.: wells movuble bediky emlwise, a swivel heaflrifior supporhi g the'z OthEI'Z E f said rolahs inaehbbei- -ativeiselejtien to said said igd heiidfiiemitting in 'nt ui lmid 136 rolls relative to each other, and means for moving said swivel head to feed said second roll transversely of said first roll.

4. A ring rollin'g machine, comprising a 6 rotatably mounted forming roll, a swivel head adjacent to said forming roll, a second forming roll rotatably mounted in said swivel head to cooperate with said first forming roll, means for moving said swivel head bodily so as to feed said second forming roll 10 transversely of said first forming roll, and means for rotating said first forming roll, said feed means and said rotating means having a common source of power.

Signed at Winchester, New Hampshire, 15 this 26 day of May, 1921.

GOUVERNEUR G. BROWNE. 

